OpenAI · model passport
OpenAI: GPT-6 Luna
gpt-6-luna- Cloud only
- Proprietary licence
- 1,050,000 context
- Released 2026-10-09(first seen on LMArena)
- Overall · LMArena
- 1,443#81 of 396
- Best percentile
- 91.5AIME (math)
- Cohort standing
- 67.3median 60.6
What the data says
Benchmarked on 14 of 27 tracked axes. Every figure below is the model's own published result on that board.
Strongest axes
- 91.5 pct — AIME (math) (98.9%)
- 85.2 pct — Coding (1,506)
Uneven: 69.8 percentile points between its best and worst axis — 91.5 pct on AIME (math) versus 21.7 pct on Terminal-Bench 4.0.
- AIME (math)91.5 pct98.9%Verify →
- Coding85.2 pct1,506Verify →
- Instruction following82.8 pct1,442Verify →
- GPQA Diamond82.4 pct90.5%Verify →
- Hard prompts81.1 pct1,466Verify →
- Overall79.8 pct1,443Verify →
- WebDev Arena78.4 pct1,582Verify →
- Factuality Arena76.2 pct1,460Verify →
- Search Arena71.4 pct1,209Verify →
- Agent Arena69.1 pct0.033Verify →
- ARC-AGI-264 pct59.3%Verify →
- Vision Arena62.7 pct1,241Verify →
- SimpleQA Verified47.6 pct41.4%Verify →
- Terminal-Bench 4.021.7 pct16.4%Verify →
- Document ArenaNot benchmarked
- FrontierMathNot benchmarked
- Humanity's Last ExamNot benchmarked
- SimpleBenchNot benchmarked
- LiveBenchNot benchmarked
- BFCL v4 (function calling)Not benchmarked
- SWE-bench Verified (live board)Not benchmarked
- MMLU-Pro (Artificial Analysis)Not benchmarked
- LiveCodeBench (Artificial Analysis)Not benchmarked
- IFBench (Artificial Analysis)Not benchmarked
- HHEM Hallucination (Vectara)Not benchmarked
- SWE-bench VerifiedNot benchmarked
- Terminal-BenchNot benchmarked
Percentiles are the model's standing within each board's own population. Axes marked "not benchmarked" have no published result for this model — that is an absence of data, not a low score.
How to run it
Use it hosted
openai/gpt-6-lunaAPI parameters this endpoint supports
Example request
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"openai/gpt-6-luna","messages":[{"role":"user","content":"Hello"}]}'Identifiers, limits and prices are synced from the upstream source shown above. Any field we haven't synced is left out entirely rather than guessed.
gpt-6-luna-max stands at 67.3 (raw mean 71) — measured on 14 of 27 axes.
gpt-6-luna-max stands at 67.3 versus a cohort median of 60.6 across 171 models released within 180 days — above the peer median.
gpt-6-luna-max scores at percentile 91.5 on AIME (math).
gpt-6-luna-max scores at percentile 85.2 on Coding.
gpt-6-luna-max ranks between #30 and #85 across 6 built-in weightings — best under "Agentic", worst under "All sources".
Every claim is a computed fact from the current board data, phrased by a low-temperature model call and rejected by a validation gate if any number is not in the source row. How the leaderboards work →